Synonym Nuance VS
How to say "Spread" in Japanese
Both words can translate to "spread", but which should you choose?
Japanese Option A
波及
はきゅう (hakyuu)
N2 / CEFR Syllabus
VS
Japanese Option B
蔓延る
はびこる (habikoru)
N1 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "spread" into Japanese, you must choose carefully between 波及 and 蔓延る.
In Japanese, 波及 (はきゅう (hakyuu)) is typically associated with "spread; repercussion; ripple effect" (Syllabus Level: N2) and represents Describes how an influence, effect, or problem spreads to other areas, people, or fields, often implying a gradual or unintended spread, sometimes with a negative or concerning connotation..
On the other hand, 蔓延る (はびこる (habikoru)) maps to "to spread; to thrive; to infest (often in a negative sense)" (Syllabus Level: N1) and represents 雑草が伸びるように、望ましくないもの（悪習、病気、デマなど）が広がる様子を表す。負のニュアンスが強い。Describes undesirable things. A literal translation of "spread" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "波及"
経済危機の影響は、世界中に波及した。
The impact of the economic crisis spread throughout the world.
Bilingual Context for "蔓延る"
悪い噂が社内に蔓延っている。
Bad rumors are spreading throughout the company.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "経済危機の影響は、世界中に ＿＿＿ した。" (Meaning: "The impact of the economic crisis spread throughout the world.")
🎉 Correct Answer!
Remember: "波及" fits here because it means "spread; repercussion; ripple effect" in the context of: "The impact of the economic crisis spread throughout the world.". "蔓延る" represents "to spread; to thrive; to infest (often in a negative sense)".